Kubota WSM L3560, Workshop Manual

Page: 539 / 801

HYDRAULIC SYSTEM
L3560, L4060, L4760, L5060, L5460, L6060, WSM
8-M10
[4] POSITION CONTROL LINKAGE
Position control is a mechanism to raise or lower the
implement attached to the tractor in proportion to the
movement of the control lever.
The implement can be set at any height by moving
the position control lever. Fine position adjustment is
also easy.

Lift
1. When the position control lever is moved to the
LIFT
position, the control arm shaft (2) rotates to the
arrow. Therefore, the spool drive lever (3) moves
around the fulcrum
P
and push the spool (1) opening
the
LIFT
circuit.
2. When the lift arm moves upward, the feedback lever
shaft (4) is rotated to the arrow, since the feedback
rod is actuated. Therefore, the spool drive lever (3)
moves around the fulcrum
Q
and pull the spool (1).
3. The lift arm stops when the spool returns to the
neutral position.

Down
1. When the position control lever is moved to the
DOWN
position, the control arm shaft (2) rotates to
the arrow. Therefore, the spool drive lever (3) moves
around the fulcrum
P
and pull the spool (1) opening
the
DOWN
circuit.
2. When the lift arm moves downward, the feedback
lever shaft (4) is rotated to the arrow, since the
feedback rod is actuated. Therefore, the spool drive
lever (3) moves around the fulcrum
Q
and pushes
the spool (1).
3. The lift arm stops when the spool (1) returns to the
neutral position.
9Y1210824HYM0013US0
(1) Spool
(2) Control Arm Shaft
(3) Spool Drive Lever
(4) Feedback Lever Shaft
A: Neutral
B: Lift
C: Down
KiSC issued 03, 2016 A